let angle = 0; //角度，用来做简单的动画效果的
 let value = 80;
//  var timerId;
export const  option = {
     backgroundColor: '#000E1A',
     title: {
         text: '{a|' + value + '}{c|%}',
         x: 'center',
         y: 'center',
         textStyle: {
             rich: {
                 a: {
                     fontSize: 26,
                     color: '#29EEF3'
                 },

                 c: {
                     fontSize: 20,
                     color: '#ffffff',
                     // padding: [5,0]
                 }
             }
         }
     },

     series: [
         // 紫色
         {
             name: "ring5",
             type: 'custom',
             coordinateSystem: "none",
             renderItem: function(params, api) {
                 return {
                     type: 'arc',
                     shape: {
                         cx: api.getWidth() / 2,
                         cy: api.getHeight() / 2,
                         r: Math.min(api.getWidth(), api.getHeight()) / 2 * 0.6,
                         startAngle: (0 + angle) * Math.PI / 180,
                         endAngle: (90 + angle) * Math.PI / 180
                     },
                     style: {
                         stroke: "#8383FA",
                         fill: "transparent",
                         lineWidth: 1.5
                     },
                     silent: true
                 };
             },
             data: [0]
         }, {
             name: "ring5", //紫点
             type: 'custom',
             coordinateSystem: "none",
             renderItem: function(params, api) {
                 let x0 = api.getWidth() / 2;
                 let y0 = api.getHeight() / 2;
                 let r = Math.min(api.getWidth(), api.getHeight()) / 2 * 0.6;
                 let point = getCirlPoint(x0, y0, r, (90 + angle))
                 return {
                     type: 'circle',
                     shape: {
                         cx: point.x,
                         cy: point.y,
                         r: 4
                     },
                     style: {
                         stroke: "#8450F9", //绿
                         fill: "#8450F9"
                     },
                     silent: true
                 };
             },
             data: [0]
         },
         // 蓝色

         {
             name: "ring5",
             type: 'custom',
             coordinateSystem: "none",
             renderItem: function(params, api) {
                 return {
                     type: 'arc',
                     shape: {
                         cx: api.getWidth() / 2,
                         cy: api.getHeight() / 2,
                         r: Math.min(api.getWidth(), api.getHeight()) / 2 * 0.6,
                         startAngle: (180 + angle) * Math.PI / 180,
                         endAngle: (270 + angle) * Math.PI / 180
                     },
                     style: {
                         stroke: "#4386FA",
                         fill: "transparent",
                         lineWidth: 1.5
                     },
                     silent: true
                 };
             },
             data: [0]
         },
         {
             name: "ring5", // 蓝色
             type: 'custom',
             coordinateSystem: "none",
             renderItem: function(params, api) {
                 let x0 = api.getWidth() / 2;
                 let y0 = api.getHeight() / 2;
                 let r = Math.min(api.getWidth(), api.getHeight()) / 2 * 0.6;
                 let point = getCirlPoint(x0, y0, r, (180 + angle))
                 return {
                     type: 'circle',
                     shape: {
                         cx: point.x,
                         cy: point.y,
                         r: 4
                     },
                     style: {
                         stroke: "#4386FA", //绿
                         fill: "#4386FA"
                     },
                     silent: true
                 };
             },
             data: [0]
         },

         {
             name: "ring5",
             type: 'custom',
             coordinateSystem: "none",
             renderItem: function(params, api) {
                 return {
                     type: 'arc',
                     shape: {
                         cx: api.getWidth() / 2,
                         cy: api.getHeight() / 2,
                         r: Math.min(api.getWidth(), api.getHeight()) / 2 * 0.65,
                         startAngle: (270 + -angle) * Math.PI / 180,
                         endAngle: (40 + -angle) * Math.PI / 180
                     },
                     style: {
                         stroke: "#0CD3DB",
                         fill: "transparent",
                         lineWidth: 1.5
                     },
                     silent: true
                 };
             },
             data: [0]
         },
         // 橘色

         {
             name: "ring5",
             type: 'custom',
             coordinateSystem: "none",
             renderItem: function(params, api) {
                 return {
                     type: 'arc',
                     shape: {
                         cx: api.getWidth() / 2,
                         cy: api.getHeight() / 2,
                         r: Math.min(api.getWidth(), api.getHeight()) / 2 * 0.65,
                         startAngle: (90 + -angle) * Math.PI / 180,
                         endAngle: (220 + -angle) * Math.PI / 180
                     },
                     style: {
                         stroke: "#FF8E89",
                         fill: "transparent",
                         lineWidth: 1.5
                     },
                     silent: true
                 };
             },
             data: [0]
         }, {
             name: "ring5",
             type: 'custom',
             coordinateSystem: "none",
             renderItem: function(params, api) {
                 let x0 = api.getWidth() / 2;
                 let y0 = api.getHeight() / 2;
                 let r = Math.min(api.getWidth(), api.getHeight()) / 2 * 0.65;
                 let point = getCirlPoint(x0, y0, r, (90 + -angle))
                 return {
                     type: 'circle',
                     shape: {
                         cx: point.x,
                         cy: point.y,
                         r: 4
                     },
                     style: {
                         stroke: "#FF8E89", //粉
                         fill: "#FF8E89"
                     },
                     silent: true
                 };
             },
             data: [0]
         }, {
             name: "ring5", //绿点
             type: 'custom',
             coordinateSystem: "none",
             renderItem: function(params, api) {
                 let x0 = api.getWidth() / 2;
                 let y0 = api.getHeight() / 2;
                 let r = Math.min(api.getWidth(), api.getHeight()) / 2 * 0.65;
                 let point = getCirlPoint(x0, y0, r, (270 + -angle))
                 return {
                     type: 'circle',
                     shape: {
                         cx: point.x,
                         cy: point.y,
                         r: 4
                     },
                     style: {
                         stroke: "#0CD3DB", //绿
                         fill: "#0CD3DB"
                     },
                     silent: true
                 };
             },
             data: [0]
         }, {
             name: '吃猪肉频率',
             type: 'pie',
             radius: ['52%', '40%'],
             silent: true,
             clockwise: true,
             startAngle: 90,
             z: 0,
             zlevel: 0,
             label: {
                 normal: {
                     position: "center",

                 }
             },
             data: [{
                     value: value,
                     name: "",
                     itemStyle: {
                         normal: {
                             color: { // 完成的圆环的颜色
                                 colorStops: [{
                                         offset: 0,
                                         color: '#A098FC' // 0% 处的颜色
                                     },
                                     {
                                         offset: 0.3,
                                         color: '#4386FA' // 0% 处的颜色
                                     },
                                     {
                                         offset: 0.6,
                                         color: '#4FADFD' // 0% 处的颜色
                                     },
                                     {
                                         offset: 0.8,
                                         color: '#0CD3DB' // 100% 处的颜色
                                     }, {
                                         offset: 1,
                                         color: '#646CF9' // 100% 处的颜色
                                     }
                                 ]
                             },
                         }
                     }
                 },
                 {
                     value: 100 - value,
                     name: "",
                     label: {
                         normal: {
                             show: false
                         }
                     },
                     itemStyle: {
                         normal: {
                             color: "#173164"
                         }
                     }
                 }
             ]
         },
         {
             name: '吃猪肉频率',
             type: 'pie',
             radius: ['32%', '35%'],
             silent: true,
             clockwise: true,
             startAngle: 270,
             z: 0,
             zlevel: 0,
             label: {
                 normal: {
                     position: "center",

                 }
             },
             data: [{
                     value: value,
                     name: "",
                     itemStyle: {
                         normal: {
                             color: { // 完成的圆环的颜色
                                 colorStops: [{
                                     offset: 0,
                                     color: '#00EDF3' // 0% 处的颜色
                                 }, {
                                     offset: 1,
                                     color: '#646CF9' // 100% 处的颜色
                                 }]
                             },
                         }
                     }
                 },
                 {
                     value: 100 - value,
                     name: "",
                     label: {
                         normal: {
                             show: false
                         }
                     },
                     itemStyle: {
                         normal: {
                             color: "#173164"
                         }
                     }
                 }
             ]
         },

     ]
 };

 //获取圆上面某点的坐标(x0,y0表示坐标，r半径，angle角度)
 function getCirlPoint(x0, y0, r, angle) {
     let x1 = x0 + r * Math.cos(angle * Math.PI / 180)
     let y1 = y0 + r * Math.sin(angle * Math.PI / 180)
     return {
         x: x1,
         y: y1
     }
 }

//  function draw() {
//      angle = angle + 3
//      myChart.setOption(option, true)
//      //window.requestAnimationFrame(draw);
//  }
//  if (timerId) {
//      clearInterval(timerId);
//  }
//  timerId = setInterval(function() {
//      //用setInterval做动画感觉有问题
//      draw()
//  }, 100);